Toan s - Quyen Bai 25� Lvc;tng ntt6'c h C;\t htoi chiem ty I � 48%, h�t kho chiem ti I� 0%._ Hoi phai ,08 tan h9t tudi se duqc bao n h i e u ki-lo-gam h9t kho? Bai 26 H�t tvai co ti r� n tt6'c Ia 1-5%, h�t kho co ti 1� n uoc Ia 0°16 f)� c6 340kg h